changeset 829:dfa742c663f9

remove ContinuationFilter and FauxContinuation
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 15 Sep 2016 18:16:25 -0600
parents 8579194add85
children 7c737c376bc3
files src/luan/modules/http/LuanHandler.java src/org/eclipse/jetty/continuation/ContinuationFilter.java src/org/eclipse/jetty/continuation/ContinuationSupport.java src/org/eclipse/jetty/continuation/FauxContinuation.java
diffstat 4 files changed, 20 insertions(+), 810 deletions(-) [+]
line wrap: on
line diff
diff -r 8579194add85 -r dfa742c663f9 src/luan/modules/http/LuanHandler.java
--- a/src/luan/modules/http/LuanHandler.java	Thu Sep 15 16:47:49 2016 -0600
+++ b/src/luan/modules/http/LuanHandler.java	Thu Sep 15 18:16:25 2016 -0600
@@ -10,6 +10,7 @@
 import org.slf4j.LoggerFactory;
 import org.eclipse.jetty.server.Request;
 import org.eclipse.jetty.server.handler.AbstractHandler;
+import org.eclipse.jetty.continuation.ContinuationSupport;
 import luan.Luan;
 import luan.LuanState;
 import luan.LuanTable;
@@ -52,6 +53,7 @@
 	@Override public void handle(String target,Request baseRequest,HttpServletRequest request,HttpServletResponse response) 
 		throws IOException
 	{
+//System.out.println("getContinuation = "+ContinuationSupport.getContinuation(request));
 		if( target.endsWith("/") )
 			target += welcomeFile;
 		Thread thread = Thread.currentThread();
diff -r 8579194add85 -r dfa742c663f9 src/org/eclipse/jetty/continuation/ContinuationFilter.java
--- a/src/org/eclipse/jetty/continuation/ContinuationFilter.java	Thu Sep 15 16:47:49 2016 -0600
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,174 +0,0 @@
-//
-//  ========================================================================
-//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
-//  ------------------------------------------------------------------------
-//  All rights reserved. This program and the accompanying materials
-//  are made available under the terms of the Eclipse Public License v1.0
-//  and Apache License v2.0 which accompanies this distribution.
-//
-//      The Eclipse Public License is available at
-//      http://www.eclipse.org/legal/epl-v10.html
-//
-//      The Apache License v2.0 is available at
-//      http://www.opensource.org/licenses/apache2.0.php
-//
-//  You may elect to redistribute this code under either of these licenses.
-//  ========================================================================
-//
-
-package org.eclipse.jetty.continuation;
-
-import java.io.IOException;
-
-import javax.servlet.Filter;
-import javax.servlet.FilterChain;
-import javax.servlet.FilterConfig;
-import javax.servlet.ServletContext;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-
-
-
-/* ------------------------------------------------------------ */
-/**
- * <p>ContinuationFilter must be applied to servlet paths that make use of
- * the asynchronous features provided by {@link Continuation} APIs, but that
- * are deployed in servlet containers that are neither Jetty (>= 7) nor a
- * compliant Servlet 3.0 container.</p>
- * <p>The following init parameters may be used to configure the filter (these are mostly for testing):</p>
- * <dl>
- * <dt>debug</dt><dd>Boolean controlling debug output</dd>
- * <dt>jetty6</dt><dd>Boolean to force use of Jetty 6 continuations</dd>
- * <dt>faux</dt><dd>Boolean to force use of faux continuations</dd>
- * </dl>
- * <p>If the servlet container is not Jetty (either 6 or 7) nor a Servlet 3
- * container, then "faux" continuations will be used.</p>
- * <p>Faux continuations will just put the thread that called {@link Continuation#suspend()}
- * in wait, and will notify that thread when {@link Continuation#resume()} or
- * {@link Continuation#complete()} is called.</p>
- * <p>Faux continuations are not threadless continuations (they are "faux" - fake - for this reason)
- * and as such they will scale less than proper continuations.</p>
- */
-public class ContinuationFilter implements Filter
-{
-    static boolean _initialized;
-    static boolean __debug; // shared debug status
-    private boolean _faux;
-    private boolean _jetty6;
-    private boolean _filtered;
-    ServletContext _context;
-    private boolean _debug;
-
-    public void init(FilterConfig filterConfig) throws ServletException
-    {
-        boolean jetty_7_or_greater="org.eclipse.jetty.servlet".equals(filterConfig.getClass().getPackage().getName());
-        _context = filterConfig.getServletContext();
-
-        String param=filterConfig.getInitParameter("debug");
-        _debug=param!=null&&Boolean.parseBoolean(param);
-        if (_debug)
-            __debug=true;
-
-        param=filterConfig.getInitParameter("jetty6");
-        if (param==null)
-            param=filterConfig.getInitParameter("partial");
-        if (param!=null)
-            _jetty6=Boolean.parseBoolean(param);
-        else
-            _jetty6=ContinuationSupport.__jetty6 && !jetty_7_or_greater;
-
-        param=filterConfig.getInitParameter("faux");
-        if (param!=null)
-            _faux=Boolean.parseBoolean(param);
-        else
-            _faux=!(jetty_7_or_greater || _jetty6 || _context.getMajorVersion()>=3);
-
-        _filtered=_faux||_jetty6;
-        if (_debug)
-            _context.log("ContinuationFilter "+
-                    " jetty="+jetty_7_or_greater+
-                    " jetty6="+_jetty6+
-                    " faux="+_faux+
-                    " filtered="+_filtered+
-                    " servlet3="+ContinuationSupport.__servlet3);
-        _initialized=true;
-    }
-
-    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException
-    {
-        if (_filtered)
-        {
-            Continuation c = (Continuation) request.getAttribute(Continuation.ATTRIBUTE);
-            FilteredContinuation fc;
-            if (_faux && (c==null || !(c instanceof FauxContinuation)))
-            {
-                fc = new FauxContinuation(request);
-                request.setAttribute(Continuation.ATTRIBUTE,fc);
-            }
-            else
-                fc=(FilteredContinuation)c;
-
-            boolean complete=false;
-            while (!complete)
-            {
-                try
-                {
-                    if (fc==null || (fc).enter(response))
-                        chain.doFilter(request,response);
-                }
-                catch (ContinuationThrowable e)
-                {
-                    debug("faux",e);
-                }
-                finally
-                {
-                    if (fc==null)
-                        fc = (FilteredContinuation) request.getAttribute(Continuation.ATTRIBUTE);
-
-                    complete=fc==null || (fc).exit();
-                }
-            }
-        }
-        else
-        {
-            try
-            {
-                chain.doFilter(request,response);
-            }
-            catch (ContinuationThrowable e)
-            {
-                debug("caught",e);
-            }
-        }
-    }
-
-    private void debug(String string)
-    {
-        if (_debug)
-        {
-            _context.log(string);
-        }
-    }
-
-    private void debug(String string, Throwable th)
-    {
-        if (_debug)
-        {
-            if (th instanceof ContinuationThrowable)
-                _context.log(string+":"+th);
-            else
-                _context.log(string,th);
-        }
-    }
-
-    public void destroy()
-    {
-    }
-
-    public interface FilteredContinuation extends Continuation
-    {
-        boolean enter(ServletResponse response);
-        boolean exit();
-    }
-}
diff -r 8579194add85 -r dfa742c663f9 src/org/eclipse/jetty/continuation/ContinuationSupport.java
--- a/src/org/eclipse/jetty/continuation/ContinuationSupport.java	Thu Sep 15 16:47:49 2016 -0600
+++ b/src/org/eclipse/jetty/continuation/ContinuationSupport.java	Thu Sep 15 18:16:25 2016 -0600
@@ -32,133 +32,23 @@
  */
 public class ContinuationSupport
 {
-    static final boolean __jetty6;
-    static final boolean __servlet3;
-    static final Class<?> __waitingContinuation;
-    static final Constructor<? extends Continuation> __newServlet3Continuation;
-    static final Constructor<? extends Continuation> __newJetty6Continuation;
-    static
-    {
-        boolean servlet3Support=false;
-        Constructor<? extends Continuation>s3cc=null;
-        try
-        {
-            boolean servlet3=ServletRequest.class.getMethod("startAsync")!=null;
-            if (servlet3)
-            {
-                Class<? extends Continuation> s3c = ContinuationSupport.class.getClassLoader().loadClass("org.eclipse.jetty.continuation.Servlet3Continuation").asSubclass(Continuation.class);
-                s3cc=s3c.getConstructor(ServletRequest.class);
-                servlet3Support=true;
-            }
-        }
-        catch (Exception e)
-        {}
-        finally
-        {
-            __servlet3=servlet3Support;
-            __newServlet3Continuation=s3cc;
-        }
-
-        boolean jetty6Support=false;
-        Constructor<? extends Continuation>j6cc=null;
-        try
-        {
-            Class<?> jetty6ContinuationClass = ContinuationSupport.class.getClassLoader().loadClass("org.mortbay.util.ajax.Continuation");
-            boolean jetty6=jetty6ContinuationClass!=null;
-            if (jetty6)
-            {
-                Class<? extends Continuation> j6c = ContinuationSupport.class.getClassLoader().loadClass("org.eclipse.jetty.continuation.Jetty6Continuation").asSubclass(Continuation.class);
-                j6cc=j6c.getConstructor(ServletRequest.class, jetty6ContinuationClass);
-                jetty6Support=true;
-            }
-        }
-        catch (Exception e)
-        {}
-        finally
-        {
-            __jetty6=jetty6Support;
-            __newJetty6Continuation=j6cc;
-        }
-
-        Class<?> waiting=null;
-        try
-        {
-            waiting=ContinuationSupport.class.getClassLoader().loadClass("org.mortbay.util.ajax.WaitingContinuation");
-        }
-        catch (Exception e)
-        {
-        }
-        finally
-        {
-            __waitingContinuation=waiting;
-        }
-    }
+	/* ------------------------------------------------------------ */
+	/**
+	 * Get a Continuation.  The type of the Continuation returned may
+	 * vary depending on the container in which the application is
+	 * deployed. It may be an implementation native to the container (eg
+	 * org.eclipse.jetty.server.AsyncContinuation) or one of the utility
+	 * implementations provided such as an internal <code>FauxContinuation</code>
+	 * or a real implementation like {@link org.eclipse.jetty.continuation.Servlet3Continuation}.
+	 * @param request The request
+	 * @return a Continuation instance
+	 */
+	public static Continuation getContinuation(ServletRequest request)
+	{
+		Continuation continuation = (Continuation) request.getAttribute(Continuation.ATTRIBUTE);
+		if (continuation!=null)
+			return continuation;
 
-    /* ------------------------------------------------------------ */
-    /**
-     * Get a Continuation.  The type of the Continuation returned may
-     * vary depending on the container in which the application is
-     * deployed. It may be an implementation native to the container (eg
-     * org.eclipse.jetty.server.AsyncContinuation) or one of the utility
-     * implementations provided such as an internal <code>FauxContinuation</code>
-     * or a real implementation like {@link org.eclipse.jetty.continuation.Servlet3Continuation}.
-     * @param request The request
-     * @return a Continuation instance
-     */
-    public static Continuation getContinuation(ServletRequest request)
-    {
-        Continuation continuation = (Continuation) request.getAttribute(Continuation.ATTRIBUTE);
-        if (continuation!=null)
-            return continuation;
-
-        while (request instanceof ServletRequestWrapper)
-            request=((ServletRequestWrapper)request).getRequest();
-
-        if (__servlet3 )
-        {
-            try
-            {
-                continuation=__newServlet3Continuation.newInstance(request);
-                request.setAttribute(Continuation.ATTRIBUTE,continuation);
-                return continuation;
-            }
-            catch(Exception e)
-            {
-                throw new RuntimeException(e);
-            }
-        }
-
-        if (__jetty6)
-        {
-            Object c=request.getAttribute("org.mortbay.jetty.ajax.Continuation");
-            try
-            {
-                if (c==null || __waitingContinuation==null || __waitingContinuation.isInstance(c))
-                    continuation=new FauxContinuation(request);
-                else
-                    continuation= __newJetty6Continuation.newInstance(request,c);
-                request.setAttribute(Continuation.ATTRIBUTE,continuation);
-                return continuation;
-            }
-            catch(Exception e)
-            {
-                throw new RuntimeException(e);
-            }
-        }
-
-        throw new IllegalStateException("!(Jetty || Servlet 3.0 || ContinuationFilter)");
-    }
-
-    /* ------------------------------------------------------------ */
-    /**
-     * @param request the servlet request
-     * @param response the servlet response
-     * @deprecated use {@link #getContinuation(ServletRequest)}
-     * @return the continuation
-     */
-    @Deprecated
-    public static Continuation getContinuation(final ServletRequest request, final ServletResponse response)
-    {
-        return getContinuation(request);
-    }
+		throw new IllegalStateException("!(Jetty || Servlet 3.0 || ContinuationFilter)");
+	}
 }
diff -r 8579194add85 -r dfa742c663f9 src/org/eclipse/jetty/continuation/FauxContinuation.java
--- a/src/org/eclipse/jetty/continuation/FauxContinuation.java	Thu Sep 15 16:47:49 2016 -0600
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,508 +0,0 @@
-//
-//  ========================================================================
-//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
-//  ------------------------------------------------------------------------
-//  All rights reserved. This program and the accompanying materials
-//  are made available under the terms of the Eclipse Public License v1.0
-//  and Apache License v2.0 which accompanies this distribution.
-//
-//      The Eclipse Public License is available at
-//      http://www.eclipse.org/legal/epl-v10.html
-//
-//      The Apache License v2.0 is available at
-//      http://www.opensource.org/licenses/apache2.0.php
-//
-//  You may elect to redistribute this code under either of these licenses.
-//  ========================================================================
-//
-
-
-package org.eclipse.jetty.continuation;
-
-import java.util.ArrayList;
-
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import javax.servlet.ServletResponseWrapper;
-
-import org.eclipse.jetty.continuation.ContinuationFilter.FilteredContinuation;
-
-
-/* ------------------------------------------------------------ */
-/**
- * A blocking implementation of Continuation.
- * This implementation of Continuation is used by the {@link ContinuationFilter}
- * when there are is no native or asynchronous continuation type available. 
- */
-class FauxContinuation implements FilteredContinuation
-{
-    // common exception used for all continuations.  
-    // Turn on debug in ContinuationFilter to see real stack trace.
-    private final static ContinuationThrowable __exception = new ContinuationThrowable();
-    
-    private static final int __HANDLING=1;   // Request dispatched to filter/servlet
-    private static final int __SUSPENDING=2;   // Suspend called, but not yet returned to container
-    private static final int __RESUMING=3;     // resumed while suspending
-    private static final int __COMPLETING=4;   // resumed while suspending or suspended
-    private static final int __SUSPENDED=5;    // Suspended and parked
-    private static final int __UNSUSPENDING=6;
-    private static final int __COMPLETE=7;
-
-    private final ServletRequest _request;
-    private ServletResponse _response;
-    
-    private int _state=__HANDLING;
-    private boolean _initial=true;
-    private boolean _resumed=false;
-    private boolean _timeout=false;
-    private boolean _responseWrapped=false;
-    private  long _timeoutMs=30000; // TODO configure
-    
-    private ArrayList<ContinuationListener> _listeners; 
-
-    FauxContinuation(final ServletRequest request)
-    {
-        _request=request;
-    }
-
-    /* ------------------------------------------------------------ */
-    public void onComplete()
-    {
-        if (_listeners!=null)
-            for (ContinuationListener l:_listeners)
-                l.onComplete(this);
-    }
-    
-    /* ------------------------------------------------------------ */
-    public void onTimeout()
-    {
-        if (_listeners!=null)
-            for (ContinuationListener l:_listeners)
-                l.onTimeout(this);
-    }
-
-    /* ------------------------------------------------------------ */
-    /**
-     * @see org.eclipse.jetty.continuation.Continuation#isResponseWrapped()
-     */
-    public boolean isResponseWrapped()
-    {
-        return _responseWrapped;
-    }
-
-    /* ------------------------------------------------------------ */
-    public boolean isInitial()
-    {
-        synchronized(this)
-        {
-            return _initial;
-        }
-    }
-
-    /* ------------------------------------------------------------ */
-    public boolean isResumed()
-    {
-        synchronized(this)
-        {
-            return _resumed;
-        }
-    }
-
-    /* ------------------------------------------------------------ */
-    public boolean isSuspended()
-    {
-        synchronized(this)
-        {
-            switch(_state)
-            {
-                case __HANDLING:
-                    return false;
-                case __SUSPENDING:
-                case __RESUMING:
-                case __COMPLETING:
-                case __SUSPENDED:
-                    return true;
-                case __UNSUSPENDING:
-                default:
-                    return false;   
-            }
-        }
-    }
-
-    /* ------------------------------------------------------------ */
-    public boolean isExpired()
-    {
-        synchronized(this)
-        {
-            return _timeout;
-        }
-    }
-
-    /* ------------------------------------------------------------ */
-    public void setTimeout(long timeoutMs)
-    {
-        _timeoutMs = timeoutMs;
-    }
-
-    /* ------------------------------------------------------------ */
-    public void suspend(ServletResponse response)
-    {
-        _response=response;
-        _responseWrapped=response instanceof ServletResponseWrapper;
-        suspend();
-    }
-    
-    /* ------------------------------------------------------------ */
-    public void suspend()
-    {
-        synchronized (this)
-        {
-            switch(_state)
-            {
-                case __HANDLING:
-                    _timeout=false;
-                    _resumed=false;
-                    _state=__SUSPENDING;
-                    return;
-
-                case __SUSPENDING:
-                case __RESUMING:
-                    return;
-
-                case __COMPLETING:
-                case __SUSPENDED:
-                case __UNSUSPENDING:
-                    throw new IllegalStateException(this.getStatusString());
-
-                default:
-                    throw new IllegalStateException(""+_state);
-            }
-
-        }
-    }
-
-
-    /* ------------------------------------------------------------ */
-    /* (non-Javadoc)
-     * @see org.mortbay.jetty.Suspendor#resume()
-     */
-    public void resume()
-    {
-        synchronized (this)
-        {
-            switch(_state)
-            {
-                case __HANDLING:
-                    _resumed=true;
-                    return;
-                    
-                case __SUSPENDING:
-                    _resumed=true;
-                    _state=__RESUMING;
-                    return;
-
-                case __RESUMING:
-                case __COMPLETING:
-                    return;
-                    
-                case __SUSPENDED:
-                    fauxResume();
-                    _resumed=true;
-                    _state=__UNSUSPENDING;
-                    break;
-                    
-                case __UNSUSPENDING:
-                    _resumed=true;
-                    return;
-                    
-                default:
-                    throw new IllegalStateException(this.getStatusString());
-            }
-        }
-        
-    }
-    
-
-    /* ------------------------------------------------------------ */
-    public void complete()
-    {
-        // just like resume, except don't set _resumed=true;
-        synchronized (this)
-        {
-            switch(_state)
-            {
-                case __HANDLING:
-                    throw new IllegalStateException(this.getStatusString());
-                    
-                case __SUSPENDING:
-                    _state=__COMPLETING;
-                    break;
-                    
-                case __RESUMING:
-                    break;
-
-                case __COMPLETING:
-                    return;
-                    
-                case __SUSPENDED:
-                    _state=__COMPLETING;
-                    fauxResume();
-                    break;
-                    
-                case __UNSUSPENDING:
-                    return;
-                    
-                default:
-                    throw new IllegalStateException(this.getStatusString());
-            }
-        }
-    }
-
-    /* ------------------------------------------------------------ */
-    /**
-     * @see org.eclipse.jetty.continuation.Continuation#getServletResponse()
-     */
-    public boolean enter(ServletResponse response)
-    {
-        _response=response;
-        return true;
-    }
-
-    /* ------------------------------------------------------------ */
-    /**
-     * @see org.eclipse.jetty.continuation.Continuation#getServletResponse()
-     */
-    public ServletResponse getServletResponse()
-    {
-        return _response;
-    }
-    
-
-    /* ------------------------------------------------------------ */
-    void handling()
-    {
-        synchronized (this)
-        {
-            _responseWrapped=false;
-            switch(_state)
-            {
-                case __HANDLING:
-                    throw new IllegalStateException(this.getStatusString());
-
-                case __SUSPENDING:
-                case __RESUMING:
-                    throw new IllegalStateException(this.getStatusString());
-
-                case __COMPLETING:
-                    return;
-
-                case __SUSPENDED:
-                    fauxResume();
-                case __UNSUSPENDING:
-                    _state=__HANDLING;
-                    return;
-
-                default:
-                    throw new IllegalStateException(""+_state);
-            }
-
-        }
-    }
-
-    /* ------------------------------------------------------------ */
-    /**
-     * @return true if handling is complete
-     */
-    public boolean exit()
-    {
-        synchronized (this)
-        {
-            switch(_state)
-            {
-                case __HANDLING:
-                    _state=__COMPLETE;
-                    onComplete();
-                    return true;
-
-                case __SUSPENDING:
-                    _initial=false;
-                    _state=__SUSPENDED;
-                    fauxSuspend(); // could block and change state.
-                    if (_state==__SUSPENDED || _state==__COMPLETING)
-                    {
-                        onComplete();
-                        return true;
-                    }
-                    
-                    _initial=false;
-                    _state=__HANDLING;
-                    return false; 
-
-                case __RESUMING:
-                    _initial=false;
-                    _state=__HANDLING;
-                    return false; 
-
-                case __COMPLETING:
-                    _initial=false;
-                    _state=__COMPLETE;
-                    onComplete();
-                    return true;
-
-                case __SUSPENDED:
-                case __UNSUSPENDING:
-                default:
-                    throw new IllegalStateException(this.getStatusString());
-            }
-        }
-    }
-
-    /* ------------------------------------------------------------ */
-    protected void expire()
-    {
-        // just like resume, except don't set _resumed=true;
-
-        synchronized (this)
-        {
-            _timeout=true;
-        }
-        
-        onTimeout();
-        
-        synchronized (this)
-        {
-            switch(_state)
-            {
-                case __HANDLING:
-                    return;
-                    
-                case __SUSPENDING:
-                    _timeout=true;
-                    _state=__RESUMING;
-                    fauxResume();
-                    return;
-                    
-                case __RESUMING:
-                    return;
-                    
-                case __COMPLETING:
-                    return;
-                    
-                case __SUSPENDED:
-                    _timeout=true;
-                    _state=__UNSUSPENDING;
-                    break;
-                    
-                case __UNSUSPENDING:
-                    _timeout=true;
-                    return;
-                    
-                default:
-                    throw new IllegalStateException(this.getStatusString());
-            }
-        }
-    }
-
-    private void fauxSuspend()
-    {
-        long expire_at = System.currentTimeMillis()+_timeoutMs;
-        long wait=_timeoutMs;
-        while (_timeoutMs>0 && wait>0)
-        {
-            try
-            {
-                this.wait(wait);
-            }
-            catch (InterruptedException e)
-            {
-                break;
-            }
-            wait=expire_at-System.currentTimeMillis();
-        }
-
-        if (_timeoutMs>0 && wait<=0)
-            expire();
-    }
-    
-    private void fauxResume()
-    {
-        _timeoutMs=0;
-        this.notifyAll();
-    }
-    
-    @Override
-    public String toString()
-    {
-        return getStatusString();
-    }
-    
-    String getStatusString()
-    {
-        synchronized (this)
-        {
-            return
-            ((_state==__HANDLING)?"HANDLING":
-                    (_state==__SUSPENDING)?"SUSPENDING":
-                        (_state==__SUSPENDED)?"SUSPENDED":
-                            (_state==__RESUMING)?"RESUMING":
-                                (_state==__UNSUSPENDING)?"UNSUSPENDING":
-                                    (_state==__COMPLETING)?"COMPLETING":
-                                    ("???"+_state))+
-            (_initial?",initial":"")+
-            (_resumed?",resumed":"")+
-            (_timeout?",timeout":"");
-        }
-    }
-
-    
-    public void addContinuationListener(ContinuationListener listener)
-    {
-        if (_listeners==null)
-            _listeners=new ArrayList<ContinuationListener>();
-        _listeners.add(listener);
-        
-    }
-
-    /* ------------------------------------------------------------ */
-    /**
-     * @see org.eclipse.jetty.continuation.Continuation#getAttribute(java.lang.String)
-     */
-    public Object getAttribute(String name)
-    {
-        return _request.getAttribute(name);
-    }
-
-    /* ------------------------------------------------------------ */
-    /**
-     * @see org.eclipse.jetty.continuation.Continuation#removeAttribute(java.lang.String)
-     */
-    public void removeAttribute(String name)
-    {
-        _request.removeAttribute(name);
-    }
-
-    /* ------------------------------------------------------------ */
-    /**
-     * @see org.eclipse.jetty.continuation.Continuation#setAttribute(java.lang.String, java.lang.Object)
-     */
-    public void setAttribute(String name, Object attribute)
-    {
-        _request.setAttribute(name,attribute);
-    }
-
-    /* ------------------------------------------------------------ */
-    /**
-     * @see org.eclipse.jetty.continuation.Continuation#undispatch()
-     */
-    public void undispatch()
-    {
-        if (isSuspended())
-        {
-            if (ContinuationFilter.__debug)
-                throw new ContinuationThrowable();
-            throw __exception;
-        }
-        throw new IllegalStateException("!suspended");
-        
-    }
-}